I've only tried with very straight-forward, simple scents so far. Haven't really kept track of the successful "recipes", TBH, I generally just try something when the mood strikes, inspired by the moment. A combination I like but that has varying success depending on the frags is incense + almond/vanilla. Incense I get from either Bois d'Encens, Encens Flamboyant or Ouarzazate (first two work best) - almond/vanilla from KM Loukhoum, Jour de Fête, Confetto or PotL.
I layered Fig&Vetiver with Philosykos, but that's not dramatic enough for me. Still figgy, after all.
I must have tried more, but no clue what they were.